One-Loop Amplitudes for e^+ e^- to q-bar q Q-bar Q

Details One-Loop Amplitudes for e^+ e^- to q-bar q Q-bar Q One-Loop Amplitudes for e^+ e^- to q-bar q Q-bar Q

1996-10-15

arxiv.org/abs/hep-ph/9610370v1

Nucl.Phys. B489 (1997) 3-23

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, TeX, four figures

Scientific paper

10.1016/S0550-3213(96)00703-1

We present the one-loop helicity amplitudes for processes involving a vector boson V (V=W,Z, or gamma^*) and four massless quarks, 0 to V q-bar q Q-bar Q, where V couples to a massless lepton pair. These amplitudes are required for next-to-leading order O(alpha_s^3) numerical programs for four-jet production at e^+ e^- colliders, for W, Z or Drell-Yan production in association with two jets at hadron colliders, and for three-jet production in deeply inelastic scattering experiments. We obtained the amplitudes presented here by using their analytic properties to constrain their form.

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